Ventilator



(No Model.) 3 Sheets-Sheet 2.

W. SCHARNWEBER. y

VENTILATOR. Y No. 327,414; Patented sept. 29, '1885.

will l@ s """Wn f" mill W Immun i (No Model.) 3 sheets-'sheen 3. W. SCHARNWEBER.

VBNTILATOR. A No. 327,414. Patented sept.l 29, 1885.

ply of fresh air may the objectionable air in the apartment be al- .To all whom it may concern.-

NITIz-I) I STATES PATENT' OFFICE.

WILLIAM scnAnNwnnEn, or JEFFERSON, Ass'IGNoR or -ONIIQHALF rro .GAY

f DonN, on CHICAGO, ILLINOIS. .Y

vENTiLAT-OR.

SPECIFICATION forming parsof Letters raient No. 327,414; dated september 29,1885.

. Application mea June a. '1884. (No model.)

Be it known that l, WILLIAM SOHARNWE- BER, a citizen of the United States, residing at Jefferson, in the county of Cook and State of Illinois', have inventedV certainv new and useful Improvements in Ventilatore; and I hereby declare the followingv to be a full, clear, and exact description of the same.

My invention is designed to form a permanent iixture in apartments which it is desired to provide with means to permit, at the will of the occupants, communication with the eX- ternal atmosphere, whereby a controllable sup be readily admitted and to. of each apartment with the outer air comprises a passage formed through an outer wall of the building, which passage is preferably provided in theerection of the building, though it may be made in buildings already constructed. The ,most convenient location for theI sliding device hereinafter described, by means of which external air is admitted through the passage formed in the'wall intov an apartment, and the contaminated atmosphere in the apartment allowed to escape, and the communication with the external air regulated or entirely shot o, is inthe sill of the window, through .the upper side of 'which itis sunk toflie liush with the top surface, in which position it is readily accessible and offers no impediment in the way of opening and closing the inside blinds. -This location of the device device is there about on a level with the strai tum of foul air in the room, whereby the esset forth, a

cape' ot' such foul airis facilitated. The horizontal portion of the passage through the wall 'leading to a chamber under the window-sill `provided with my controlling device, may

be formed directly underneath the window, though under certain conditions, hereinafter diierent location for this horizontal portion of the air-duct aords advantages.

The particular advantage I design to aiord the device forming the subject of the present application is the accomplishment of ventilation without the production of draft. By my construction, hereinafter described,I overafto'rds the advantage, besides, that the `which leads into dern'eath the window-sill D, the passage o andA :chamber o' forming theair-.duct E.

come a difcult-y attendant, so far as I` am aware, upon the use of most ventilators'intended to operate in a manner similar to my present device. `'ljhis difficulty arises from the fact that, with the ventilators referred to, it is customary to admit air into an' apartment in a horizontal direct-ion, whereby the :fresh cool air remains at a low stratum near the door, thus failing to effect' purification ol the atmospheric condition. By directing the in- .llowing supply upward, which my present construction operates to accomplish, it does not move horizontally until it has reached a considerable height within the apartment, when it gradually sinks, being. heavier than the rarelied atmosphere with which it mixes.

The construction above outlined and the suggested modification are-clearly shown in` the accompanying drawings, in which- Figure 1 represents the exterior of a por- 'tion ot' a wall'of a house containingawindowv provided with my device, and showing the airpassage formed directly the window-sill and covered with an ornamental grating; Fig. 2. a horizontal section taken on the line 2 direction of v'the arrows, and having a portion broken away to show a detail, the view representing my entire device in position; Fig. a vertical section taken on the line 3 3 of Fig.

2, and viewed in the direction of the arrows;

below the level of 2 of Fig. l, viewed inthe Fig. 4, a view representing the construction of a modification; Figs. 5, 6, and 7, detail views, .and Fig. 8 a sectional view of a detail.

represents thewall of a house.. Bis a window provided in the wall A; and G, Figs. 1, 2, and 3, is the stone sill, underneath which, in the wall, ahorizontal opening, o, is formed,

the chamber o', provided nn- A shallow box, F, having a lateml flange, t, is sunk .into the window-sill, in the manner clearly shown in Figs. Sand 8 of the drawings. The bottom of the box F is provided with circular apertures s, Fig. 7, which are covered by a screen, G', to prevent the admission with the air of dust, dirt, insects. Sie., the screen comprising a strip of a length and width to lie along the bottom of the inner side of the box.

Aplate, F', of dimensions/to fit snugly Withf l'that it is not advisable to form it in that posiin the box F, and provided with4 circular open` ings s to coincide with the openings s in the bottom of the box, serves the purpose of retaining the screen G, upon which it rests, in

position.

A sliding plate,.F2, corresponding in width -with that of the inner part of the box A, lies upon the plate F. The length of the plate F2 is less than that of the box to permit it to be moved longitudinally within thensame. Gircular openings s2, preferablysomewhat larger than those nereinbefore described, are provided in the plate F2, at points where they will coincide with the last-named openings, when the sliding plate F2 is moved to bring V'one of its ends into contact with an inner end of the box. Bymoving the plate F2 in the contrary direction, to bring its opposite end into contact with the opposite end of the inner 'side of the box, the openings in the plate F2 Recesses or slots r are formed one in'each side toward the opposite ends ofthe plate F2, of' a length corresponding with the difference in length between the sliding plate and the box, measured from one of its inner ends to' the other. The sliding plate FL is secured in positiouby means of screws f1", whichy penetrate into the bottom of the box, one screw being provided for each recess r, and having its head of a. diameter greater than the width of the recess to overlap the edge of the same and prevent removal of the plate without first withdrawing the screws. lf for any reason it shall become necessary to withdraw the screen G to replace it by a new one, the plate may be taken out for the purpose on removing the screws lr.

lf desired, the plate.F may be screwed in position the m'ore firmly to hold'ihe screen in place, and to provide a more rigid surface for the motion of the sliding plate F2.

The thicknessof the plates F and F2 and the screen G combined is less than the depth of the box F, so that the plate F2 lies below the level of the edges of the box. This construction permits the top of the handle l, by means v of which the slidingplate F2 isseciproeated,

55. A closing theinside blinds. v i

rlhe passage e in the wall is purposely madeoblique on its lower side, as shown, to permit by the. incline the ready escape of water which to lie below or ilushwith the upper edges ofthe` bom'where it will .a-'ord no obstruction i may fall upon the window-sill inthe operation of Washing the window or beat through the grating from without when it rains.

As hereinbefore suggested, it y occurV .that thepassage u cannotbe provided directly v 'u'ndexmeathy the level of the' window-silber To overcome this difficulty, I form the openinge as shown in Fig. 4 of the drawings-viz., above the level of the sills, `between two windows, and'form therefrom a passage, o', leading underneath the ,sill of each Window.

4In all cases an ornamental grating, H, is

provided to cover the opening to the passage o. The gratingmay'be formed of the exact size to cover an' opening, though, if desired, for larger openingsseveral may be joined together/and means for this purpose, consisting of ears q projecting horizontally l'roni the edges of each section of the grating, whereby the sections may be bolted together, are shown in Fig. 5 of the drawings..

lf preferred, instead of forming a single large opening, c, leading from the' chamber underneath the windowsill to the exterior air, several openings of smaller dimensions may be provided.

What I claim as new, and desire to secur by Letters Patent, is-

1. A veutilatorcomprising,in combination, a chamber underneath the sill of a window, communicating through the top of the said sill with the interior of an apartment and provided With one or more openings leading to y the exterior air, and means, substantially as described, for opening and closing and gradument, whereby the vertical flow of air in an upward direction into the said apartment and the flow therefrom may be regulated, Yor tbe ow wholly shut oi', as set forth.

2. A, ventilator comprising the combination, with a windowsill having a chamber underneath it leading to an opening or openings to the exterior air formed in the wall of a building, of a box, F, set into an opening formed in the top of the said window-sill and provided with apertures s, a sliding plate, F2, within the box F, and provided with apertures s2 to correspond with the apertures s,

substantially as described,and for the purpose set forth.

3. The combination, with a wall `of a house underneath a window-sill, D, having an opene ing through it leading to the chamber. u', and

means', substantially as described, for controlling the flow of air through the said opening or openings and chamber, of 'a grating, H, formed in sections, each provided with one or lmore ears, q, bolted together, as and for the y purpose set forth;

WM. SOHARNWEBER. In presence of GAY Donn, l

DoneLAs DYRENFORTH..

IOC

having an opening or openings formed in it leading fromthe exterior air to a1 mber, @'f -v 

